Computer monitor



FIG. 1 is a front elevational view of a computer monitor;

FIG. 2 is a right side elevational view of the computer monitor, the left side of the computer monitor is identical in appearance as the right side of the computer monitor;

FIG. 3 is a top plan view of the computer monitor;

FIG. 4 is a bottom plan view of the computer monitor;

FIG. 5 is a rear elevational view of the computer monitor; and,

FIG. 6 is a rear top perspective view of the computer monitor. 

The ornamental design for a computer monitor, as shown and described. 